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<html lang="en">

<head>
    <meta charset="UTF-8">
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    <title>Document</title>
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            document.querySelector('button').onclick = function () {
                console.log('按钮被点击')
            }
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        window.onresize = function(){
            console.log('尺寸被修改了')
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</head>

<body>
    <button>按钮</button>
</body>

</html>